分享一个可行的上传OSS的可行方案，工具包出处不详，侵删

使用步骤如下

1. 将对应的js文件解压，存入以下的定位

   

2. 在config.js中加入OOS的秘钥参数

   

3. 在需要上传文件的vue界面中导入js

   // 导入OSS云
   import uploadImage from '@/util/oss/uploadFile';
   

4. （可选）定义一个VUE对象，用于存储返回的路径，以供不同的方法调用

5. 定义个上传文件的标签

   <view @click="uploadImgs('idCard1')">
       <view class="idCard-img">
           <image :src="idCard1Img || '/static/image/idcard1.png'"></image>
       </view>
   </view>
   

6. 触发的方法如下

   // 选择图片
   uploadImgs(type) {
       let that = this;
       uni.chooseImage({
           success(res) {
               let tempFilePaths = res.tempFilePaths;
               that.tmpImageUrl = tempFilePaths[0];
               that.uploadFile(type);
           }
       });
   },
   
       // 上传图片
       uploadFile(type) {
           var vm = this;
           uni.showLoading({
               title: '图片上传中'
           });
           uploadImage(0, this.tmpImageUrl, '', result => {
               console.log('图片上传结果：', result);
               this.idCard1Img = result;
           });
       },
   

7. result就是我们得到的图片路径。

附件：

---

base64.js

var base64EncodeChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
var base64DecodeChars = new Array(
    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63,
    52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1,
    -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
    15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1,
    -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
    41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1);
function encode(str) {
    var out, i, len;
    var c1, c2, c3;
    len = str.length;
    i = 0;
    out = "";
    while (i < len) {
        c1 = str.charCodeAt(i++) & 0xff;
        if (i == len) {
            out += base64EncodeChars.charAt(c1 >> 2);
            out += base64EncodeChars.charAt((c1 & 0x3) << 4);
            out += "==";
            break;
        }
        c2 = str.charCodeAt(i++);
        if (i == len) {
            out += base64EncodeChars.charAt(c1 >> 2);
            out += base64EncodeChars.charAt(((c1 & 0x3) << 4) | ((c2 & 0xF0) >> 4));
            out += base64EncodeChars.charAt((c2 & 0xF) << 2);
            out += "=";
            break;
        }
        c3 = str.charCodeAt(i++);
        out += base64EncodeChars.charAt(c1 >> 2);
        out += base64EncodeChars.charAt(((c1 & 0x3) << 4) | ((c2 & 0xF0) >> 4));
        out += base64EncodeChars.charAt(((c2 & 0xF) << 2) | ((c3 & 0xC0) >> 6));
        out += base64EncodeChars.charAt(c3 & 0x3F);
    }
    return out;
}
function decode(str) {
    var c1, c2, c3, c4;
    var i, len, out;
    len = str.length;
    i = 0;
    out = "";
    while (i < len) {
        /* c1 */
        do {
            c1 = base64DecodeChars[str.charCodeAt(i++) & 0xff];
        } while (i < len && c1 == -1);
        if (c1 == -1)
            break;
        /* c2 */
        do {
            c2 = base64DecodeChars[str.charCodeAt(i++) & 0xff];
        } while (i < len && c2 == -1);
        if (c2 == -1)
            break;
        out += String.fromCharCode((c1 << 2) | ((c2 & 0x30) >> 4));
        /* c3 */
        do {
            c3 = str.charCodeAt(i++) & 0xff;
            if (c3 == 61)
                return out;
            c3 = base64DecodeChars[c3];
        } while (i < len && c3 == -1);
        if (c3 == -1)
            break;
        out += String.fromCharCode(((c2 & 0XF) << 4) | ((c3 & 0x3C) >> 2));
        /* c4 */
        do {
            c4 = str.charCodeAt(i++) & 0xff;
            if (c4 == 61)
                return out;
            c4 = base64DecodeChars[c4];
        } while (i < len && c4 == -1);
        if (c4 == -1)
            break;
        out += String.fromCharCode(((c3 & 0x03) << 6) | c4);
    }
    return out;
}


function utf16to8(str) {
    var out, i, len, c;
    out = "";
    len = str.length;
    for (i = 0; i < len; i++) {
        c = str.charCodeAt(i);
        if ((c >= 0x0001) && (c <= 0x007F)) {
            out += str.charAt(i);
        } else if (c > 0x07FF) {
            out += String.fromCharCode(0xE0 | ((c >> 12) & 0x0F));
            out += String.fromCharCode(0x80 | ((c >> 6) & 0x3F));
            out += String.fromCharCode(0x80 | ((c >> 0) & 0x3F));
        } else {
            out += String.fromCharCode(0xC0 | ((c >> 6) & 0x1F));
            out += String.fromCharCode(0x80 | ((c >> 0) & 0x3F));
        }
    }
    return out;
}
function utf8to16(str) {
    var out, i, len, c;
    var char2, char3;
    out = "";
    len = str.length;
    i = 0;
    while (i < len) {
        c = str.charCodeAt(i++);
        switch (c >> 4) {
            case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7:
                // 0xxxxxxx
                out += str.charAt(i - 1);
                break;
            case 12: case 13:
                // 110x xxxx 10xx xxxx
                char2 = str.charCodeAt(i++);
                out += String.fromCharCode(((c & 0x1F) << 6) | (char2 & 0x3F));
                break;
            case 14:
                // 1110 xxxx 10xx xxxx 10xx xxxx
                char2 = str.charCodeAt(i++);
                char3 = str.charCodeAt(i++);
                out += String.fromCharCode(((c & 0x0F) << 12) |
                    ((char2 & 0x3F) << 6) |
                    ((char3 & 0x3F) << 0));
                break;
        }
    }
    return out;
}


module.exports = {
    encode: encode,
    decode: decode,
    utf16to8: utf16to8,
    utf8to16: utf8to16
}

config.js

var fileHost = 'https://ppdyf.oss-cn-hangzhou.aliyuncs.com/';
//你的阿里云地址最后面跟上一个/   在你当前小程序的后台的uploadFile 合法域名也要配上这个域名
var config = {
   //aliyun OSS config
  uploadImageUrl: 'https://ppdyf.oss-cn-hangzhou.aliyuncs.com/', // 默认存在根目录，可根据需求改
  AccessKeySecret: '',        // AccessKeySecret 去你的阿里云上控制台上找
  OSSAccessKeyId: '',         // AccessKeyId 去你的阿里云上控制台上找
   timeout: 876000 //这个是上传文件时Policy的失效时间
};
module.exports = config

crypto.js

const Crypto = {};

(function(){

var base64map = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";


// Crypto utilities
var util = Crypto.util = {

	// Bit-wise rotate left
	rotl: function (n, b) {
		return (n << b) | (n >>> (32 - b));
	},

	// Bit-wise rotate right
	rotr: function (n, b) {
		return (n << (32 - b)) | (n >>> b);
	},

	// Swap big-endian to little-endian and vice versa
	endian: function (n) {

		// If number given, swap endian
		if (n.constructor == Number) {
			return util.rotl(n,  8) & 0x00FF00FF |
			       util.rotl(n, 24) & 0xFF00FF00;
		}

		// Else, assume array and swap all items
		for (var i = 0; i < n.length; i++)
			n[i] = util.endian(n[i]);
		return n;

	},

	// Generate an array of any length of random bytes
	randomBytes: function (n) {
		for (var bytes = []; n > 0; n--)
			bytes.push(Math.floor(Math.random() * 256));
		return bytes;
	},

	// Convert a string to a byte array
	stringToBytes: function (str) {
		var bytes = [];
		for (var i = 0; i < str.length; i++)
			bytes.push(str.charCodeAt(i));
		return bytes;
	},

	// Convert a byte array to a string
	bytesToString: function (bytes) {
		var str = [];
		for (var i = 0; i < bytes.length; i++)
			str.push(String.fromCharCode(bytes[i]));
		return str.join("");
	},

	// Convert a string to big-endian 32-bit words
	stringToWords: function (str) {
		var words = [];
		for (var c = 0, b = 0; c < str.length; c++, b += 8)
			words[b >>> 5] |= str.charCodeAt(c) << (24 - b % 32);
		return words;
	},

	// Convert a byte array to big-endian 32-bits words
	bytesToWords: function (bytes) {
		var words = [];
		for (var i = 0, b = 0; i < bytes.length; i++, b += 8)
			words[b >>> 5] |= bytes[i] << (24 - b % 32);
		return words;
	},

	// Convert big-endian 32-bit words to a byte array
	wordsToBytes: function (words) {
		var bytes = [];
		for (var b = 0; b < words.length * 32; b += 8)
			bytes.push((words[b >>> 5] >>> (24 - b % 32)) & 0xFF);
		return bytes;
	},

	// Convert a byte array to a hex string
	bytesToHex: function (bytes) {
		var hex = [];
		for (var i = 0; i < bytes.length; i++) {
			hex.push((bytes[i] >>> 4).toString(16));
			hex.push((bytes[i] & 0xF).toString(16));
		}
		return hex.join("");
	},

	// Convert a hex string to a byte array
	hexToBytes: function (hex) {
		var bytes = [];
		for (var c = 0; c < hex.length; c += 2)
			bytes.push(parseInt(hex.substr(c, 2), 16));
		return bytes;
	},

	// Convert a byte array to a base-64 string
	bytesToBase64: function (bytes) {

		// Use browser-native function if it exists
		if (typeof btoa == "function") return btoa(util.bytesToString(bytes));

		var base64 = [],
		    overflow;

		for (var i = 0; i < bytes.length; i++) {
			switch (i % 3) {
				case 0:
					base64.push(base64map.charAt(bytes[i] >>> 2));
					overflow = (bytes[i] & 0x3) << 4;
					break;
				case 1:
					base64.push(base64map.charAt(overflow | (bytes[i] >>> 4)));
					overflow = (bytes[i] & 0xF) << 2;
					break;
				case 2:
					base64.push(base64map.charAt(overflow | (bytes[i] >>> 6)));
					base64.push(base64map.charAt(bytes[i] & 0x3F));
					overflow = -1;
			}
		}

		// Encode overflow bits, if there are any
		if (overflow != undefined && overflow != -1)
			base64.push(base64map.charAt(overflow));

		// Add padding
		while (base64.length % 4 != 0) base64.push("=");

		return base64.join("");

	},

	// Convert a base-64 string to a byte array
	base64ToBytes: function (base64) {

		// Use browser-native function if it exists
		if (typeof atob == "function") return util.stringToBytes(atob(base64));

		// Remove non-base-64 characters
		base64 = base64.replace(/[^A-Z0-9+\/]/ig, "");

		var bytes = [];

		for (var i = 0; i < base64.length; i++) {
			switch (i % 4) {
				case 1:
					bytes.push((base64map.indexOf(base64.charAt(i - 1)) << 2) |
					           (base64map.indexOf(base64.charAt(i)) >>> 4));
					break;
				case 2:
					bytes.push(((base64map.indexOf(base64.charAt(i - 1)) & 0xF) << 4) |
					           (base64map.indexOf(base64.charAt(i)) >>> 2));
					break;
				case 3:
					bytes.push(((base64map.indexOf(base64.charAt(i - 1)) & 0x3) << 6) |
					           (base64map.indexOf(base64.charAt(i))));
					break;
			}
		}

		return bytes;

	}

};

// Crypto mode namespace
Crypto.mode = {};

})();

module.exports = Crypto;

---

hmac.js

const Crypto = require('./crypto.js');

(function(){

// Shortcut
var util = Crypto.util;

Crypto.HMAC = function (hasher, message, key, options) {

	// Allow arbitrary length keys
	key = key.length > hasher._blocksize * 4 ?
	      hasher(key, { asBytes: true }) :
	      util.stringToBytes(key);

	// XOR keys with pad constants
	var okey = key,
	    ikey = key.slice(0);
	for (var i = 0; i < hasher._blocksize * 4; i++) {
		okey[i] ^= 0x5C;
		ikey[i] ^= 0x36;
	}

	var hmacbytes = hasher(util.bytesToString(okey) +
	                       hasher(util.bytesToString(ikey) + message, { asString: true }),
	                       { asBytes: true });
	return options && options.asBytes ? hmacbytes :
	       options && options.asString ? util.bytesToString(hmacbytes) :
	       util.bytesToHex(hmacbytes);

};

})();

module.exports = Crypto;

---

sha1.js

const Crypto = require('./crypto.js');

(function(){

// Shortcut
var util = Crypto.util;

// Public API
var SHA1 = Crypto.SHA1 = function (message, options) {
	var digestbytes = util.wordsToBytes(SHA1._sha1(message));
	return options && options.asBytes ? digestbytes :
	       options && options.asString ? util.bytesToString(digestbytes) :
	       util.bytesToHex(digestbytes);
};

// The core
SHA1._sha1 = function (message) {

	var m  = util.stringToWords(message),
	    l  = message.length * 8,
	    w  =  [],
	    H0 =  1732584193,
	    H1 = -271733879,
	    H2 = -1732584194,
	    H3 =  271733878,
	    H4 = -1009589776;

	// Padding
	m[l >> 5] |= 0x80 << (24 - l % 32);
	m[((l + 64 >>> 9) << 4) + 15] = l;

	for (var i = 0; i < m.length; i += 16) {

		var a = H0,
		    b = H1,
		    c = H2,
		    d = H3,
		    e = H4;

		for (var j = 0; j < 80; j++) {

			if (j < 16) w[j] = m[i + j];
			else {
				var n = w[j-3] ^ w[j-8] ^ w[j-14] ^ w[j-16];
				w[j] = (n << 1) | (n >>> 31);
			}

			var t = ((H0 << 5) | (H0 >>> 27)) + H4 + (w[j] >>> 0) + (
			         j < 20 ? (H1 & H2 | ~H1 & H3) + 1518500249 :
			         j < 40 ? (H1 ^ H2 ^ H3) + 1859775393 :
			         j < 60 ? (H1 & H2 | H1 & H3 | H2 & H3) - 1894007588 :
			                  (H1 ^ H2 ^ H3) - 899497514);

			H4 =  H3;
			H3 =  H2;
			H2 = (H1 << 30) | (H1 >>> 2);
			H1 =  H0;
			H0 =  t;

		}

		H0 += a;
		H1 += b;
		H2 += c;
		H3 += d;
		H4 += e;

	}

	return [H0, H1, H2, H3, H4];

};

// Package private blocksize
SHA1._blocksize = 16;

})();

module.exports = Crypto;

---

upload

const env = require('./config.js'); //配置文件，在这文件里配置你的OSS keyId和KeySecret,timeout:87600;

const base64 = require('./base64.js');//Base64,hmac,sha1,crypto相关算法
require('./hmac.js');
require('./sha1.js');
const Crypto = require('./crypto.js');

/*
 *上传文件到阿里云oss
 * type:0-图片，1-视频
 *@param - filePath :图片的本地资源路径
 *@param - dir:表示要传到哪个目录下
 *@param - successc:成功回调
 *@param - failc:失败回调
 */ 
const uploadFile = function (type,filePath, dir, successc, failc) {
  if (!filePath || filePath.length < 9) {
    uni.showModal({
      title: '图片错误',
      content: '请重试',
      showCancel: false,
    })
    return;
  }
  
  //图片名字 可以自行定义，     这里是采用当前的时间戳 + 150内的随机数来给图片命名的
  var aliyunFileKey=null;
  if(type==1){
	   aliyunFileKey = dir + new Date().getTime() + Math.floor(Math.random() * 150) + '.mp4';
  }else{
	   aliyunFileKey = dir + new Date().getTime() + Math.floor(Math.random() * 150) + '.png';
  }
  const aliyunServerURL = env.uploadImageUrl;//OSS地址，需要https
  const accessid = env.OSSAccessKeyId;
  const policyBase64 = getPolicyBase64();
  const signature = getSignature(policyBase64);//获取签名
 
  uni.uploadFile({
    url: aliyunServerURL,//开发者服务器 url
    filePath: filePath,//要上传文件资源的路径
    name: 'file',//必须填file
    formData: {
      'key': aliyunFileKey,
      'policy': policyBase64,
      'OSSAccessKeyId': accessid,
      'signature': signature,
      'success_action_status': '200',
    },
    success: function (res) {
			console.log(res);
      if (res.statusCode != 200) {
        failc(new Error('上传错误:' + JSON.stringify(res)))
        return;
      }
       successc(aliyunServerURL+aliyunFileKey);
    },
    fail: function (err) {
      err.wxaddinfo = aliyunServerURL;
      failc(err);
    },
  })
}

const getPolicyBase64 = function () {
  let date = new Date();
  date.setHours(date.getHours() + env.timeout);
  let srcT = date.toISOString();
  const policyText = {
    "expiration": srcT, //设置该Policy的失效时间，超过这个失效时间之后，就没有办法通过这个policy上传文件了 
    "conditions": [
      ["content-length-range", 0, 800 * 1024 * 1024] // 设置上传文件的大小限制,800mb
    ]
  };

  const policyBase64 = base64.encode(JSON.stringify(policyText));
	console.log(policyBase64);
  return policyBase64;
}

const getSignature = function (policyBase64) {
  const accesskey = env.AccessKeySecret;

  const bytes = Crypto.HMAC(Crypto.SHA1, policyBase64, accesskey, {
    asBytes: true
  });
  const signature = Crypto.util.bytesToBase64(bytes);
console.log(signature);
  return signature;
}

module.exports = uploadFile;